Which type of applications? What I have found to be finicky is the desktop environments, however BSDs are pretty much tuned for web servers/applications. Bastille is designed for deploying web applications in jails securely and built on top of FreeBSD which is a pretty good default OS that gets out of your way already.

Normally you don't release an app for BSD specifically unless you want to offer a port. In which case software is usually built and if you need containerization you can put it in a jail.

It seems you would do well to install a FreeBSD vm/usb and give it a run. Their documentation is pretty good and their forums are helpful.